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HomeOff Topics › Runaway Toyota Wrongly Imprison Man
04-27-2010 01:00 AM  8 years agoPost 41
SSN Pru

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Taxachusetts

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I guess we can do away with bleeder nipples then because as you say, once they are closed, regardless of whether or not there is air (gas) in the lines, you can just press harder and still have your breaks...

Stupidity can be cured. Ignorance is for life!

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04-27-2010 02:09 AM  8 years agoPost 42
RayJayJohnsonJr

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Midwest

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No, that's not what I'm saying. What I'm saying is that the bubbles produced in the scenario that the OP described WILL NOT cause a loss of brake pressure. They were produced while the system was under pressure. They weren't there to begin with, as you might have after some brake system maintenance. As long as the pedal is not released and heat does not damage the seal and cause a leak, pressure will be maintained in the system, regardless of the amount of heat-induced bubbles produced by this one application of the pedal.

Been working on that kinda stuff for over 30 years. I know what a bleeder nipple is for....

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04-27-2010 02:44 AM  8 years agoPost 43
daman691003

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bellingham, ma

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maybe we should just let a judge decide wether guilty or not. I doubt this guy had any cruel intent... it was an accident. I love that all the people I know that think they are great drivers, are the worst drivers i know.....

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04-27-2010 02:51 AM  8 years agoPost 44
kurtk

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Fuquay Varina

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Everyone thinks they are an "above average" driver, but that is a statistical impossibility.

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04-28-2010 01:34 PM  8 years agoPost 45
fireplug1111

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Saint Cloud florida

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I'll make it simple. People PANIC they can't grasp the situation for what it is and act on it. THEY PANIC. If you can't realize that there is something wrong with your braking you need to shut off the car, hit the brakes, or simply put it in netural and then use the brakes. I just gave 3 simple ways to stop your car. Not just let it drive till you run off a cliff.... People need to grow a pair and use thier head for something other than a hat rack and realize there is something wrong and take action. If your getting stung by bees are you gonna sit there, or run away? I would bet people would run away. Some people just can't handle the fact that they have to make a decision fast...

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04-28-2010 02:08 PM  8 years agoPost 46
EKIM

rrVeteran

Long Island New York

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Here is someone else's point of view on the subject....
CAUTION: FOUL LANGUAGE AHEAD

http://www.youtube.com/watch?v=lZ4PtafRB9c

*******Mike********

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04-28-2010 02:42 PM  8 years agoPost 47
MikeC

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Mosinee, WI

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Love the video! LMFAO

Century Swift, TREX 450, Blade MCX, Spektrum DX7

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04-28-2010 06:32 PM  8 years agoPost 48
Rockohaulic

rrElite Veteran

Canyon Country, CA, USA, 3rd Rock from the Sun

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I was cryin that was soooo funny!

And the politically incorrect TRUTH!

Saturday morning I flew my helicopter in my pajamas
How it got in my pajamas I'll never know

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04-28-2010 11:47 PM  8 years agoPost 49
jcrack_corn

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End of Time

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Markerbeacon,

i gave you the answers you were asking for in my first post, but I guess I forgot that not all people here have college level physics (not a knock, i'm serious)

when the water that is in the brake lines turns to vapor it becomes compressible, that is the issue

H20 (or any liquid for that matter) is not compressible....if you put them empire state building on top of one drop of water, the water would not compress.

water in its gaseous form IS compressible...so even in a "closed" system, if the water is converted to gas, it will (and does) compress and change braking characteristics.

water would work really nicely in a hydrolic system in general except that heat is generally created in hydrolyic systems and the water boils....

------------------------------------------------------------------
do it inverted
------------

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04-29-2010 12:48 AM  8 years agoPost 50
Raptor Pilot

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Northern Ireland U.K

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Interesting post this. What i do know from being a mechanic is 99% of reported brake problems reported were in automatic Toyotas. Also when you step hard on the brakes with the engine wide open you will stop the car. But, when the brake fluid starts to boil you start to loose hydraulic pressure in the closed system because you now have a gas in the closed system. This is the point at which if the car isnt near stopped it can start to speed up again and you wont stop it with the brakes even if you have not lifted your foot of the brake even once. This is the point where normal people would switch the ignition off to stop the car. Most brake fluid i use is the DOT 5 or DOT 5.1 type, it has a higher temperature rateing than normal DOT 3 that goes in most cars. It would be very hard or next to impossible to pull the car out of gear on a manual gear box while its under load, i dont know what an automatic would be like to get out of gear under load as 99.9% of cars in our country are manual gear change. Automatics are a real rare thing here.

If it doesnt move and its meant too... use WD 40. If it moves and its not meant too...use duct tape!

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04-29-2010 01:00 AM  8 years agoPost 51
RayJayJohnsonJr

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Midwest

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But, when the brake fluid starts to boil you start to loose hydraulic pressure in the closed system because you now have a gas in the closed system.
Negative. Let's assume our closed system is simply a sealed container of oil, water, what have you. Apply heat to the container. As the liquid with in it starts to heat up, the pressure inside the container starts to increase. Right? And you're saying when that that liquid starts to boil and turns to steam, you have a pressure drop?

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04-29-2010 01:17 AM  8 years agoPost 52
Raptor Pilot

rrVeteran

Northern Ireland U.K

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Yes, a hudraulic pressure drop. Do what i do to check brake problems. Put a tee piece in the brake line and plumb a 5000 psi pressure gauge into the inside of the car. Bleed the system and the line up to the gauge and take it for a drive. Go down a hill and apply the brakes while holding down the throttle untill you get brake fade. Then and only then you can see the pressure dropping on the gauge and the car not stopping with your foot held still on the pedal. I can explaine it any simpler than that. Try it sometime, the results may suprise you.

If it doesnt move and its meant too... use WD 40. If it moves and its not meant too...use duct tape!

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04-29-2010 01:42 AM  8 years agoPost 53
MikeC

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Mosinee, WI

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i dont know what an automatic would be like to get out of gear under load as 99.9% of cars in our country are manual gear change. Automatics are a real rare thing here.
That's interesting and it certainly isn't the case in the US. It's getting harder and harder to find a new car here with a manual transmission. My Sienna is the first vehicle I've ever owned that didn't have a manual, and I've been driving since 1975. Of course with a manual you could push in the clutch but killing the ignition would be a better alternative to screaming the daylights out of the engine.

Century Swift, TREX 450, Blade MCX, Spektrum DX7

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08-11-2010 02:27 AM  8 years agoPost 54
helibeast

rrApprentice

Mn

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Just a update. The guy has been released from prison. Found not guilty.

Champion,Magic,MiniBoy,Xcell60+50,Intrepid,Intrepid Gas,Baron30,Whisper,300X,mCPXv1v2,Concept,Nexus

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